Miscellaneous

Random useful information

rustup update to update your version of Rust. cargo check to see if your crates are up-to-date.

Read a line of input

#![allow(unused)]
fn main() {
  use std::io;
  let mut ans = String::new();
  print!("Enter answer: ");
  io::stdin().read_line(&mut ans)
  .expect("Failed to read input");
}

cargo doc --open opens the documentation for all your dependencies.

Haskell Curry was an American mathematician and logician.

Default an error case with a match expression

let ans: u32 = match ans.trim().parse() { 
    Ok(num) => num,
    Err(_) => 0,
}